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(No Mode1.) 18 Sheets-Sheet 1.

S. C. A. HOLTH.

TRACTOR.

No. 437,?59. atented Oct. 7, 1890.

18 Sheets-Sheet 2.

(No Model.)

y S. C. A. HOLTH.

TRACTOR1 Patented Oct. 7, 1890.

(No Mode1.)i, 18 Sheets-Sheet 3.

S. G. A. HOLTH.

TRACTOR.

Patented Oct. 7, 1890.

(No ModeLLl,

S. C. A. HOLTH.

TRACTOR.

18 Sheets-Sheet 4.

- Patented Oct. 7, 1890.

r m I /f/ l (.No Mode1.) 18 Sheets-Sheet 5. S. C. L AHOLTH. TRACTOR. No. 437,759. 1890.

Patented Oct. 7

(No Model.) 18 Sheets-Sheet 6.

' s. C. A. HOLTH. l

` l TRACTOR. No. 43H59 Patented 001;. 7, 1890.

(No Model.) 18 Sheets-Sheet 7.

S. C. A. HOLTH. TRAG'TOR.

N0. 437,759. Patented Oct. '.7, 1890.

jim??? @No Model.) 18 -sheets-Sheet 8.

. S. C. A. HULTH.

TRACTOR.

N0. 437,759. Patented ont. 7, 1890.

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(No Model.) 18 sheetssheet S. C. A. HGLTH.

TRACTOR.

Pateted Oct. '7, 1890.

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18 Sheets-Sheet IO.

S. C. A. HOLTH.

TRACTOR.

Patented Oct. '7, 1890.

@No Model.) 18 Sheets-Sheet 11.

` S. C. A. HOLTH.

TRACTOR.

No. 437,759. Patented Oct. '7, 1890.

No Model.) S C A HOI-.TH 18 Sheets-Sheet 12.

TRACTOR.

No. 437,759. Patented ot. 7, 1890.

(Noj'Model.) 18 Sheets-Sheet 13. S.. C. A.. HULTH.

I TRAGTOR- No. SVQL Patente Oct. 7, 1890.

(NoMpdel.) 18 Sheets-Sheet 14.

S. U. A. HULTH.

TRAGTR..

N0. iL-352759. Patented Oct. 7, 1890.

(V w S (No Model.) 18 Sheets-Sheet 15.-

s. G. A. HOLTH.

d TRACTOR.

No. 437,759. Patented 001;, 7, 1890.

I Willlmlmll! W UWM i jnulmluuymnlA (No Model.) 18 Sheets-Sheet 16.

S. C. A. HGLTH.

TRACTOR.

No. 437,759. Patented Oct. '7, 1890.

IUVrIV (No Model.) 18 Sheets-Sheet 17, s. 0. A. HOLTH. TRACTOR.

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Patented Olot. '7, 1890.

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l 18 Sheets-Sheet 18.

S. C. A. HOLTH.

TRACTOR.

Patented Oct. 7, 1890.

NITED STATES PATENT OFFICE.

SEVERIN C.- A. HOL'FH, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOHN A. GARDNER,

OF SAME PLACE.

TRACTOR.

SPECIFICATION forming part of Letters Patent No. 437,759, dated October '7, 18.90.

Application/'tiled July 6, 1889. Serial No. 316,667. (No model.)

To all whom 1111' may concern:

Be it known that I, SEVERIN C. A. iIoLTH, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Tractors, of which the following is a specification.

The object of my invention, generally stated, is to successfully utilize steam-power to in plowing, seeding, and generally cultivating the soil, and to perform any or all of such operations upon so large a scale that the great rapidity with which the work can be done shall not only more than com pensate for the cost of the power and machinery employed,

but also render such work exceedingly economical.

The general plan of the machine herein involved may be stated as follows: The mazo chine involves one or more steering-wheels at the front, a gang of plows at the rear, and a tractor or traction device arranged about midway of the length of the machine and comprising a wheeled engine-truck, which is z 5 jointed to the main frame of the machine, and an endless slatted belt or track which passes about the truck-wheels, and which is so operated therefrom thatv during operation the truck-Wheels will roll upon the endless slat- 3o ted track and thereby be prevented from sinking into the ground. rlhe englne is carried by the engine-truck and provided with a rotary driving-shaft, which is gear-connected with one or more, but preferably with two, of 3 5 the truck-wheels, and the boiler-furnace and boiler are arranged upon the main frame Just in front of the engine-truck. Pipe-connection is made between the engine and the boiler, and pipe-connection is also made be- 4o tween the boiler and the water-tank, which latter is arranged within the space that is bounded by the endless slatted track. Standing space is provided in front of the boilerfurnace and boiler for the engineer, who may from such position control both the engine and a steering mechanism which is operated from the engine. Power for steering is dorived from a jointed rotary shaft that is driven from the engine. Connection between said 5o rotary joint-ed shaft and the steering mechanism can be established or broken at the will of the engineer. Means are also provided whereby in case the steam-actuated steering mechanism should tend to swing the steering wheel or wheels too far to the right or to the left the connection between the jointed rotary driving-shaft and the steering mechanism will be automatically broken. The plows are arranged in a gang or series which extends obliquely to the length of the machine, and the 6o plow-beams are so attached to the main frame that the plows can be raised and lowered. A mechanism for raising and lowering the plows is arranged upon the main frame and operated from the engine through the medium of a jointed rotary power-transmitting shaft. This shaft can at the will of an attendant on the machine be connected with and disconnected from the plow raising and lowering mechanism. Provision is also made 7o for adjusting the plows, and to such end a plow-adjusting mechanism can, at the will of said attendant, be connected with and disconnected from the rotary jointed powertransmitting shaft that is employed for actuating the plow-raising mechanism. Theplows are severally held so that in the event of any one or more of the plows meeting an impassable obstruction the plow or plows thus meeting with the resistance will simply drop out of connection with the machine and thereby avoid breakage of parts. The machine is also provided with seeding devices and harrows, so thatl when desired it can be made to both plow and seed. S 5

Certain details serving to increase the general efficiency of the machine are hereinafter particularly described.

In the accompanying drawings the full length of the machine is not shown in any one view, for the reason that to so represent it would involve representa-tion upon an inconvenien tly-small scale.

In said drawings, Figure l is a side elevation of a part ofthe machine, including the middle and forward portions thereof. Fig. I 2 represents a section taken horizontally through the port or standard 66 on line 2 2 in Fig. 1, and shows in top plan aportion of the device by which an attendant standing in IOO front of the boiler-furnace B can'control the steering mechanism. Fig. 3 is a side elevation including the middlctand greater part of the rear portion of the machine, the side represented being the opposite of the side shown in Fig. 1. Fig. 4 is a side elevation including the plows and plow-lifting mechanism, the

seeding devices and harrows being for con veni ence of illustration omitted from this representation of the rear ortion of the machine. l

Fig. 5 is a view similarto Fig. 4,but includes the seeding devices and a part of the tractionprope1ling portion of the machine. j Fig.

`22 and 24 represented in Fig. .1' are omitted' from Fig. 7, the balance or fly wheels being also omitted from the engine-shaft 25. Fig. AY8 is a top plan of Fig. 7, the wheels omitted ingFig. 7 being, however, present in Fig. 8. Fig. 9 represents a cross-section taken through the machine online 9 9 in Fig. 7. Fig. 10 repsents on an enlarged scale one of the engineltruck wheels and a spur-wheel connected therewith. Fig. 11 is a section on line 11 11 in Fig. 10.- Fig. 12 represents on an enlarged f scale a cross-section through Fig. lon line 12 -12 and includes the` steering-wheels and steering mechanism. Fig. 13 represents a vertical section through the forward steering portion of the machine shown in Fig. 12, the section being on' line 13 13 in Fig. 12. Fig. 14 represen'ts in side elevation the forward end portion of the machine, including the steering; wheels and steering mechanism. Fig. `15 is a sectional plan of Fig. 14, the section being on line 15 15. of the rear platform L and a portion of the plow-raisin g and plow-adj us'tin g mechanisms. Fig. 17 is a side elevation of Fig. 16 looking from a point at the left of said gure. Figs.

18 and 19 represent side and edge views of one of the hand-levers of Fig. 17, withv means for returning the lever to its normally-upright position. Fig 20 is a side elevation of- Fig. 16. Fig. 21 represents, on a smaller scale than Figs. 16, 17, and 20, a top plan view of thel platform M, the plows, and mechanisms for controlling the plows. Fig. 22 is a longitudinal central section through one of the joints in one of the plow-beams.v Fig. 23 is aplan of said jointed portion of a plow-beam` Fig. 24 represents in perspective one of the plates of said joint. Fig. 25 is across-section through the joint on line 25 25 in Fig. 22. Fig. 26 is,`

an elevation ofthe boiler-furnace. Figs. 27 and 28 are sectional views of the same.

The main frame of the machine comprises in its structure the long channel-iron side 'I bars A, which are understood to be suitably f --furnace B is arranged upon the main 'frame connected by cross bars or braces. The boilerat a suitable distance back from the forward Fig. 1 6 represents a top plan viewv end of the machine, while the coal box or receptacle C-is alsoarranged upon the main frame at the forward end portion thereof and at a distance in front of the boiler-furnace, so as .to provide between the two a desirable width of standing room for the engineer, who may thereby have ready access to both the boiler-furnace and the coal-box, and at the same time be in position to see ahead and regulate the steering of the-machine.

The engine-truck or engine-frame D is con- 'Y structed independently of the main frame, but has a jointed connect-ion therewith, so that the entire traction-propelling device may rock 'independently of the main frame.

ping,'two forward truck-wheels 2 and the two rear truck-wheels 3 Vbeing herein provided Vwith peripherally-arranged notches adapted to receive cogs which are 'arranged upon the slatted track or traveler. The endless slatted track is provided along its inner side with a couple of endless jointed folding trusses, each formed 'by braces 4, (see Fig. 7,) which are secured upon the slats and connected together by chord links or rods 5. Each truss link or rod 5 has a hinge-connection-with one brace and a sliding connection with the next succeedingbrace. Said' truss-rods are also provided with adjustable stops 6, formed by nuts arranged upon the terminal portions of their free or unhinged endsbwhereby the extent to which the truss may unfold ,cany be determined bythe adjustment of said stops. The folding. of the two trusses along such portions of the track as are passing about the wheels is permitted by reason of the aforesaid sliding connections of the rods with the braces, while, on the other hand, the unfolding of each truss along the upper and lower leaves of -the endless slatted track, which extend between the front and rear Wheels, will be arrested at the' point where such portions of the endless track are in a straightened condition.

The axles 7 and 8, respectively, for the for-` in boxes 9 on the engine-truck frame, a desirable` mode of connecting said boxes with the truck-frame being illustrated in Fig.`9, wherein a pair of boxes 9 for the rear axle 8 are provided at the lower ends of t-he vertically-arranged flanged side pieces 10, which latter rigidly .connect and brace the upper and lower horizontal channel-iron side bars 11 of the truck-frame. One. of each pair of sprocket-wheels, which constitute the enginetruck wheels, is arranged loose upon its a1-l IOO IIO 

